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DR. GREGORY PAUL HOLLIS PH.D.
NPI 1982855276
Clinical Neuropsychologist in Saint Louis, MO

Active since October 05, 2008
12647 OLIVE BLVD, SUITE 600, SAINT LOUIS, MO 63141(800) 325-3982 Get Directions Write a Review

NPPES record last updated: October 5, 2008. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Gregory Paul Hollis Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GREGORY PAUL HOLLIS PH.D. (NPI 1982855276) is an individual clinical neuropsychologist in Saint Louis, Missouri, licensed in Georgia (PSY001417) and active in the NPI registry since October 2008.

NPPES Registry Identity

NPI1982855276
Entity TypeIndividualMale
Primary Taxonomy103G00000X
Provider Legal NameDR. GREGORY PAUL HOLLISCredential: PH.D.
Location Address12647 OLIVE BLVD, SUITE 600Saint Louis, MO 63141-6393
Mailing Address3 Myrtle Bank RdHilton Head Island, SC 29926-1809 · (843) 290-0253
Phone(800) 325-3982
Sole ProprietorYes
Enumeration DateOctober 5, 2008
✔ NPI 1982855276 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinical NeuropsychologistBehavioral Health & Social Service Providers
Taxonomy Code103G00000X
License✔ Licensed in GA · PSY001417
Definition
A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.
12647 OLIVE BLVD, Saint Louis, MO 63141
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. RUTH SUSAN ROSENSTEIN LCSW
Behavior Analyst
12647 OLIVE BLVD, SUITE 600
SAINT LOUIS, MO 63141
St. Louis County (180) 032-5398
SHARON DUCKWORTH
Social Worker (Clinical)
12647 OLIVE BLVD, SUITE 600
SAINT LOUIS, MO 63141
St. Louis County (520) 682-3182
MS. CAROL JO TALIAFERRO LCSW
Social Worker (Clinical)
12647 OLIVE BLVD, SUITE 600
SAINT LOUIS, MO 63141
St. Louis County (314) 744-4100
DR. WILLIAM CONNOR PH.D.
Psychologist
12647 OLIVE BLVD, SUITE 600
SAINT LOUIS, MO 63141
St. Louis County (877) 984-8285
MR. ROBERT FRED VANDEBORNE
Radiologic Technologist
12647 OLIVE BLVD, SUITE 600
SAINT LOUIS, MO 63141
St. Louis County (800) 325-3982
MS. DENISE TAYLOR DARDEN NNP
Nurse Practitioner (Neonatal)
12647 OLIVE BLVD
SAINT LOUIS, MO 63141
St. Louis County (800) 325-3982
MRS. AUDREY MARY HYLAND CRNA
Registered Nurse
12647 OLIVE BLVD
SAINT LOUIS, MO 63141
St. Louis County (314) 744-4247
MARK NEUENSCHWANDER
Family Medicine
12647 OLIVE BLVD, SUITE 600
SAINT LOUIS, MO 63141
St. Louis County (800) 325-3982

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Hollis's NPI number?

The NPI number for Gregory Hollis is 1982855276. It was assigned to this individual provider in the NPPES registry on October 5, 2008.

Where is Gregory Hollis located?

Gregory Hollis practices at 12647 Olive Blvd Suite 600, Saint Louis, MO 63141. The listed phone number is (800) 325-3982.

What is Gregory Hollis's specialty?

The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.

When was this NPI record last updated?

The NPPES record for Gregory Hollis was last updated on October 5, 2008. NPI Profile syncs with the weekly NPPES data releases published by CMS.